diff --git a/spa/include/spa/pod/builder.h b/spa/include/spa/pod/builder.h
index 9be8d3f38..240c53ca0 100644
--- a/spa/include/spa/pod/builder.h
+++ b/spa/include/spa/pod/builder.h
@@ -87,8 +87,9 @@ static inline void spa_pod_builder_init(struct spa_pod_builder *builder, void *d
 }
 
 static inline struct spa_pod *
-spa_pod_builder_deref(struct spa_pod_builder *builder, uint32_t offset, uint32_t size)
+spa_pod_builder_deref(struct spa_pod_builder *builder, uint32_t offset)
 {
+	uint32_t size = builder->size;
 	if (offset + 8 <= size) {
 		struct spa_pod *pod = SPA_MEMBER(builder->data, offset, struct spa_pod);
 		if (offset + SPA_POD_SIZE(pod) <= size)
@@ -100,7 +101,7 @@ spa_pod_builder_deref(struct spa_pod_builder *builder, uint32_t offset, uint32_t
 static inline struct spa_pod *
 spa_pod_builder_frame(struct spa_pod_builder *builder, struct spa_pod_frame *frame)
 {
-	return spa_pod_builder_deref(builder, frame->offset, builder->size);
+	return spa_pod_builder_deref(builder, frame->offset);
 }
 
 static inline void
diff --git a/spa/include/spa/pod/filter.h b/spa/include/spa/pod/filter.h
index c6c0c5015..dd2e9931f 100644
--- a/spa/include/spa/pod/filter.h
+++ b/spa/include/spa/pod/filter.h
@@ -367,7 +367,7 @@ spa_pod_filter(struct spa_pod_builder *b,
 		spa_pod_builder_reset(b, &state);
 	}
 	else
-		*result = (struct spa_pod*)spa_pod_builder_deref(b, state.offset, b->size);
+		*result = (struct spa_pod*)spa_pod_builder_deref(b, state.offset);
 
 	return res;
 }